BINDING AGENT FOR ROAD BUILDING AND METHOD OF ITS PRODUCING

摘要

FIELD: road-building materials. SUBSTANCE: binding agent for road building has bitumen and resin obtained in dimethylformamide regeneration. Binding agent has additionally a copolymer of ethylene with propylene or a copolymer of ethylene with propylene and diene or copolymer of ethylene with vinyl acetate. Solvent - the spent motor oil or heavy gas oil, or transformer oil, or black solar oil from bitumen production and lignin taken at the definite ratio of components. Invention can be used in road and airdrome building. EFFECT: simplified method of administration of additions to bitumen, decreased fragility point, increased adhesion and elasticity of the binding agent. 3 cl, 1 tbl, 7 ex